Pipe fitting taper drawing pipe machining device

Abstract

The invention relates to the technical field of pipe machining, in particular to a pipe fitting taper drawing pipe machining device which comprises a rack, and a taper cover die is arranged on the rack; the first driving part is arranged on the machine frame; the core rod is in transmission connection with the first driving piece, a material pipe can be arranged on the core rod in a sleeving mode, and the first driving piece can drive the core rod to drive the material pipe to move in the first direction so as to penetrate through the taper cover die; the forward pushing mechanism can abut against the tail end of the material tube, and the forward pushing mechanism can push the material tube to move in the first direction; and the material returning mechanism is arranged on the rack, the material returning mechanism and the first driving part can drive the core rod to move in the direction opposite to the first direction, and therefore the core rod drives the plasticized material pipe to penetrate out of the taper cover die to be separated. The pipe drawing device can smoothly finish pipe drawing machining and material returning actions of pipe fittings.

Description

Technical Field

[0001] The invention relates to the technical field of pipe processing, in particular to a pipe taper extraction processing device. Background Art

[0002] The frame of a bicycle is made of several different sets of pipes connected together and welded together. The outer diameters of the pipes are usually different, and the pipes are often formed into certain specific features. When these pipes of different thicknesses are welded together, it is necessary to ensure that there is no gap between the original large and small outer diameter parts. The taper process is usually used to process the pipes. The larger outer diameter pipes are partially or completely tapered according to their design requirements to form a continuous pipe with unequal circumference. "Tapering" is to put the pipes into the taper (taper) mold and drive the mold to continuously hit the pipes through the machine. The noise generated is close to 100 decibels, which is very harmful to the workers' health, and the surface quality of the processed pipes is poor.

[0003] In the prior art, the pipe drawing process often replaces the taper process for the processing of pipe fittings with unequal circumferences and wall thicknesses such as round tubes. The taper pipe drawing process uses a pipe drawing mandrel with unequal outer diameter as the inner core to pass through the material tube. The front end of the mandrel presses against the small diameter inclined section after the pre-piercing of the front end of the material tube, and drives the material tube to pass through the tapered sleeve. The taper of the tapered sleeve is designed to be the taper that the material tube will eventually form. The mandrel drives the material tube through the tapered sleeve and then drives the completed pipe fitting back. At this time, the original equal diameter material tube becomes a pipe fitting with unequal circumference. However, for longer pipe fittings, there is a large forward resistance when the mandrel drives the front end of the pipe fitting to move forward. The small diameter inclined section after the pre-piercing of the front end of the material tube passes through the tapered sleeve with the mandrel, and the friction of the mandrel driving the shaped pipe fitting to retreat and leave the tapered sleeve is very large. Usually, there is a problem of the mandrel penetrating the material tube when the shaping moves forward, and the mandrel cannot smoothly bring the pipe fitting back when retreating, resulting in the scrapping of the pipe fitting.

[0004] Therefore, a pipe taper extraction processing device is needed to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a pipe taper extraction processing device, which can smoothly complete the pipe extraction processing and material withdrawal actions of the pipe fitting.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] The pipe taper drawing processing device comprises:

[0008] A frame, wherein a tapered sleeve die is arranged on the frame;

[0009] a first driving member, wherein the first driving member is disposed on the frame;

[0010] A mandrel, the mandrel is in transmission connection with the first driving member, a stock tube can be sleeved on the mandrel, and the first driving member can drive the mandrel to drive the stock tube to move in a first direction to pass through the tapered sleeve die;

[0011] A forward pushing mechanism, the forward pushing mechanism can abut against the tail end of the stock tube, and the forward pushing mechanism can push the stock tube to move in the first direction;

[0012] A material discharging mechanism, the material discharging mechanism is arranged on the frame, and the material discharging mechanism and the first driving member can drive the mandrel to move in the reverse direction of the first direction, so that the mandrel drives the plastically deformed stock tube to pass through and separate from the tapered sleeve die.

[0013] In some embodiments, the forward pushing mechanism includes a driving component and a first push plate, the first push plate is slidably sleeved on the mandrel, and the first push plate can abut against the tail end of the stock tube, the driving component is in transmission connection with the first push plate, and the driving component is used for driving the first push plate to move in the first direction.

[0014] In some embodiments, the driving component includes a second push plate and an elastic member, the elastic member is arranged between the first push plate and the second push plate, one end of the elastic member abuts against the first push plate, the other end of the elastic member abuts against the second push plate, and the second push plate is in transmission connection with the first driving member.

[0015] In some embodiments, a first guiding column is further included, the first guiding column is arranged on the first driving member, and the first guiding column extends in the first direction, and both the first push plate and the second push plate are sleeved on the first guiding column.

[0016] In some embodiments, a first linear bearing is fixedly arranged on the first push plate, a second linear bearing is fixedly arranged on the second push plate, and both the first linear bearing and the second linear bearing are sleeved on the first guiding column.

[0017] In some embodiments, the first driving member is a hydraulic cylinder, the piston rod of the first driving member is connected to one end of the mandrel, and the second push plate is fixedly sleeved on the piston rod of the first driving member.

[0018] In some embodiments, the material discharging mechanism includes a support frame, a second driving member, and a pushing plate. The support frame is fixedly arranged on the machine frame along the first direction. The second driving member is arranged on the support frame. The pushing plate is slidably arranged on the support frame. The second driving member is in transmission connection with the pushing plate. The second driving member can drive the pushing plate to move in the direction opposite to the first direction to push the shaped material tube and the mandrel out of the tapered sleeve die and separate them.

[0019] In some embodiments, the support frame includes a bottom plate and a top plate which are arranged relatively and spaced apart. A second guiding column is arranged between the bottom plate and the top plate. The second guiding column extends along the first direction and is respectively connected to the bottom plate and the top plate. The pushing plate is sleeved on the second guiding column. The tapered sleeve die is fixedly penetrated through the bottom plate. The bottom plate is fixedly arranged on the machine frame. The second driving member is fixedly arranged on the top plate.

[0020] In some embodiments, a limiting block is fixedly arranged on one side of the bottom plate facing the top plate.

[0021] In some embodiments, a third linear bearing is fixedly arranged on the pushing plate. The third linear bearing is sleeved on the second guiding column.

[0022] Advantages of the present invention:

[0023] For a pipe fitting tapered tube drawing processing device provided by the present invention, a tapered sleeve die and a first driving member are arranged on the machine frame. The mandrel is in transmission connection with the first driving member. The first driving member can drive the mandrel to drive the material tube to move along the first direction to pass through the tapered sleeve die for shaping. The forward pushing mechanism can abut against the tail end of the material tube. The forward pushing mechanism can push the material tube to move along the first direction. The material discharging mechanism is arranged on the machine frame. The material discharging mechanism can cooperate with the first driving member to drive the mandrel to move along the reverse direction of the first direction, so that the mandrel drives the shaped material tube to pass through the tapered sleeve die and separate. Through the above arrangement, the forward pushing mechanism and the first driving member cooperate to effectively push the mandrel and the material tube to move, so as to complete the tube drawing processing. Through the cooperation of the first driving member and the material discharging mechanism, the shaped material tube and the mandrel can be smoothly pushed out of the tapered sleeve die, so as to complete the material discharging action, ensure the smooth progress of the tapered tube drawing processing of the pipe fitting, and ensure the processing quality. Description of the drawings

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings.

[0025] Figure 1 It is a schematic diagram of removing the material discharging mechanism in a pipe fitting taper pipe drawing processing device of the present invention;

[0026] Figure 2 It is a schematic diagram of the material discharging mechanism in a pipe fitting taper pipe drawing processing device of the present invention.

[0027] In the figure:

[0028] 100, stock pipe; 1, taper sleeve die; 2, first driving member; 3, mandrel; 4, forward pushing mechanism; 41, first push plate; 411, first linear bearing; 42, second push plate; 421, second linear bearing; 43, elastic member; 5, first guiding column; 6, material discharging mechanism; 61, bottom plate; 611, limiting block; 62, top plate; 63, second guiding column; 64, pushing plate; 641, third linear bearing; 65, second driving member; 7, bracket. Detailed implementation manners

[0029] Before explaining any embodiment of the present application in detail, it should be understood that the present application is not limited to the structural details and component arrangements described in the following description or shown in the above drawings.

[0030] In the present application, the terms "include", "comprise", "have" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element.

[0031] In the present application, the terms "connect", "combine", "couple", "mount" can be direct connection, combination, coupling or mounting, or indirect connection, combination, coupling or mounting. Among them, by way of example, direct connection means that two parts or components are connected together without the need for an intermediate member, and indirect connection means that two parts or components are respectively connected to at least one intermediate member, and these two parts or components are connected through the intermediate member. In addition, "connect" and "couple" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0032] In this application, those of ordinary skill in the art will understand that the functions performed by components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by parts can also be performed by one part, one component, or a combination of multiple parts.

[0033] In this application, the orientation terms such as "upper", "lower", "left", "right", "front", "rear", etc. are described based on the orientation and positional relationship shown in the drawings, and should not be construed as a limitation on the embodiments of this application. In addition, in the context, it should also be understood that when it is mentioned that one element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element. It should also be understood that the orientation terms such as the upper side, the lower side, the left side, the right side, the front side, the rear side, etc. not only represent the positive orientation, but can also be understood as the side orientation. For example, the lower side can include directly below, lower left, lower right, lower front, and lower rear, etc.

[0034] During the process of tube drawing taper machining of pipe fittings, in order to smoothly complete the tube drawing process and the material discharging action of the pipe fittings, as Figure 1 - Figure 2 shown, the present invention provides a tube fitting taper tube drawing processing device. The tube fitting taper tube drawing processing device includes a frame, a first driving member 2, a mandrel 3, a forward pushing mechanism 4, and a material discharging mechanism 6.

[0035] Among them, a taper sleeve die 1 is arranged on the frame. The first driving member 2 is fixedly arranged on the frame. The mandrel 3 is in transmission connection with the first driving member 2, and the blank tube 100 can be sleeved on the mandrel 3. The first driving member 2 can drive the mandrel 3 to drive the blank tube 100 to move in a first direction to pass through the taper sleeve die 1. The forward pushing mechanism 4 can abut against the tail end of the blank tube 100, and the forward pushing mechanism 4 can push the blank tube 100 to move in the first direction. The material discharging mechanism 6 is arranged on the frame, and the material discharging mechanism 6 and the first driving member 2 can drive the mandrel 3 to move in the reverse direction of the first direction, so that the mandrel 3 drives the plastically deformed blank tube 100 to pass through and separate from the taper sleeve die 1.

[0036] Through the above settings, by cooperating the forward pushing mechanism 4 with the first driving member 2, the mandrel 3 and the blank tube 100 can be effectively pushed to move, so as to complete the tube drawing process. By cooperating the first driving member 2 with the material discharging mechanism 6, the plastically formed blank tube 100 and the mandrel 3 can be smoothly pushed out from the taper sleeve die 1, so as to complete the material discharging action, ensure the smooth progress of the tube drawing taper machining of the pipe fittings, and ensure the machining quality.

[0037] In some embodiments, the forward push mechanism 4 includes a driving assembly and a first push plate 41. The first push plate 41 is slidably mounted on the core rod 3, and the first push plate 41 can abut against the tail end of the material tube 100. The driving assembly is in transmission connection with the first push plate 41, and the driving assembly is used to drive the first push plate 41 to move along the first direction. The first push plate 41 is driven by the driving assembly to move relative to the core rod 3, thereby providing thrust at the tail end of the material tube 100. The first driving member 2 drives the core rod 3 to drive the small diameter inclined section behind the front end pier, and the first push plate 41 pushes the tail end of the material tube 100, so that under the action of the double force, the material tube 100 can smoothly pass through the taper sleeve die 1 for taper shaping.

[0038] In some embodiments, the driving assembly includes a second push plate 42 and an elastic member 43. The elastic member 43 is disposed between the first push plate 41 and the second push plate 42. One end of the elastic member 43 abuts against the first push plate 41, and the other end of the elastic member 43 abuts against the second push plate 42. The second push plate 42 is in transmission connection with the first driving member 2. In this embodiment, the elastic member 43 is a compression spring, and the elastic member 43 is sleeved on the core rod 3. When the first driving member 2 drives the core rod 3 to move, the second push plate 42 is synchronously driven by the first driving member 2 to move along the first direction. The second push plate 42 compresses the elastic member 43, and the elastic member 43 transmits the elastic force to the first push plate 41. The first push plate 41 abuts against the material tube 100, thereby pushing the material tube 100 to move along the first direction. Through the above-mentioned arrangement, there is no need to arrange a separate driving member, thereby reducing the cost and the complexity of the control. In other embodiments, a driving member may be separately arranged on the frame, the driving member is in transmission connection with the first push plate 41, and the driving member directly drives the first push plate 41 to move, thereby pushing the material tube 100 to move relative to the taper sleeve die 1 for shaping. The driving member may be a linear driving mechanism such as a hydraulic cylinder, a pneumatic cylinder or an electric cylinder, or may be a gear rack structure or a lead screw nut structure, and no excessive restrictions are made here.

[0039] In some embodiments, the pipe taper pipe drawing processing device further includes a first guide column 5, which is fixedly disposed on the first driving member 2 and extends along the first direction, and the first push plate 41 and the second push plate 42 are both sleeved on the first guide column 5. By providing the first guide column 5, the movement of the first push plate 41 and the second push plate 42 can be guided, thereby ensuring that the movement of the first push plate 41 and the second push plate 42 along the first direction is more stable, so that the force of the first push plate 41 acting on the material tube 100 can effectively push the material tube 100 to move.

[0040] In some embodiments, a first linear bearing 411 is fixedly arranged on the first push plate 41, and a second linear bearing 421 is fixedly arranged on the second push plate 42. Both the first linear bearing 411 and the second linear bearing 421 are sleeved on the first guide post 5. By providing the first linear bearing 411 and the second linear bearing 421, the movement of the first push plate 41 and the second push plate 42 relative to the first guide post 5 can be ensured to be more smooth, reducing the friction force.

[0041] In some embodiments, the first driving member 2 is a hydraulic cylinder. The piston rod of the first driving member 2 is connected to one end of the mandrel 3, and the second push plate 42 is fixedly sleeved on the piston rod of the first driving member 2. By using a hydraulic cylinder as the first driving member 2, a large thrust can be ensured, and the first driving member 2 is directly connected to the mandrel 3, with a simple structure. When the piston rod of the first driving member 2 extends, it can drive the mandrel 3 to move while driving the second push plate 42 to move. In other embodiments, the driving member can adopt a linear driving mechanism such as a pneumatic cylinder or an electric cylinder, or a gear-rack structure or a lead screw-nut structure, and no further limitation is made here.

[0042] In some embodiments, the unloading mechanism 6 includes a support frame, a second driving member 65 and a pushing plate 64. The support frame is fixedly arranged on the frame along the first direction. The second driving member 65 is fixedly arranged on the support frame. The pushing plate 64 is slidably arranged on the support frame. The second driving member 65 is in transmission connection with the pushing plate 64. The second driving member 65 can drive the pushing plate 64 to move in the opposite direction of the first direction to push the shaped material tube 100 and the mandrel 3 out of the tapered sleeve die 1 for separation. In this embodiment, the second driving member 65 is a hydraulic cylinder. The piston rod of the second driving member 65 is connected to the pushing plate 64. By controlling the piston rod of the second driving member 65 to extend, the pushing plate 64 can be driven to move in the opposite direction of the first direction, thereby acting on the completed plastic material tube 100. The second driving member 65 cooperates with the first driving member 2 to withdraw and separate the material tube 100 and the mandrel 3 from the tapered sleeve die 1. By the above method, the friction force between the material tube 100 and the tapered sleeve die 1 can be effectively overcome, so as to smoothly complete the unloading action. In other embodiments, the second driving member 65 can also adopt a pneumatic cylinder or an electric cylinder, or a gear-rack structure or a lead screw-nut structure, and no further limitation is made here.

[0043] In some embodiments, the support frame includes a bottom plate 61 and a top plate 62 which are relatively spaced apart. A second guide post 63 is disposed between the bottom plate 61 and the top plate 62. The second guide post 63 extends along a first direction and is respectively connected to the bottom plate 61 and the top plate 62. A push plate 64 is sleeved on the second guide post 63. The taper sleeve die 1 is fixedly inserted into the mounting hole of the bottom plate 61. The bottom plate 61 is fixedly disposed on the frame, and the second driving member 65 is fixedly disposed on the top plate 62. By providing the bottom plate 61, it is convenient to fixedly dispose the taper sleeve die 1, so that the shaped material tube 100 and the mandrel 3 can enter the support frame. Then, the second driving member 65 can drive the push plate 64 to move, and cooperate with the first driving member 2 to complete the unloading action. The cooperation between the push plate 64 and the second guide post 63 can ensure that the push plate 64 moves linearly in the opposite direction of the first direction, thereby effectively pushing the material tube 100 for the unloading action.

[0044] In some embodiments, the pipe fitting taper pipe drawing processing device further includes a bracket 7, and the top plate 62 is supported on the bracket 7. By providing the bracket 7, the top plate 62 can be supported, so that the bracket 7 and the frame can effectively support to ensure the stability of the unloading mechanism 6.

[0045] In some embodiments, a limit block 611 is fixedly disposed on one side of the bottom plate 61 facing the top plate 62. By providing the limit block 611, it can play a role of mechanical limit, limit the stroke of the push plate 64, and prevent the push plate 64 from colliding with the bottom plate 61 or the taper sleeve die 1.

[0046] In some embodiments, a third linear bearing 641 is fixedly disposed on the push plate 64, and the third linear bearing 641 is sleeved on the second guide post 63. By providing the third linear bearing 641, the friction between the push plate 64 and the second guide post 63 can be reduced, thereby ensuring the smooth movement of the push plate 64 relative to the second guide post 63.

[0047] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A pipe taper extraction processing device, characterized in that: include: A frame, on which a tapered sleeve die (1) is arranged; A first driving member (2), wherein the first driving member (2) is arranged on the frame; A mandrel (3), the mandrel (3) being in driving connection with the first driving member (2), the material tube (100) being capable of being sleeved on the mandrel (3), and the first driving member (2) being capable of driving the mandrel (3) to drive the material tube (100) to move along a first direction so as to pass through the tapered sleeve die (1); A forward pushing mechanism (4), the forward pushing mechanism (4) being capable of abutting against the rear end of the material tube (100), and the forward pushing mechanism (4) being capable of pushing the material tube (100) to move along the first direction; A material return mechanism (6), wherein the material return mechanism (6) is arranged on the frame, and the material return mechanism (6) and the first driving member (2) can drive the core rod (3) to move in the opposite direction of the first direction, so that the core rod (3) drives the plasticized material tube (100) to pass through and separate from the tapered sleeve die (1).

2. The pipe taper drawing processing device according to claim 1, characterized in that: The forward push mechanism (4) comprises a driving assembly and a first push plate (41); the first push plate (41) is slidably mounted on the core rod (3), and the first push plate (41) can abut against the rear end of the material tube (100); the driving assembly is transmission-connected to the first push plate (41), and the driving assembly is used to drive the first push plate (41) to move along the first direction.

3. The pipe taper drawing processing device according to claim 2, characterized in that: The driving assembly comprises a second push plate (42) and an elastic member (43), wherein the elastic member (43) is arranged between the first push plate (41) and the second push plate (42), one end of the elastic member (43) abuts against the first push plate (41), and the other end of the elastic member (43) abuts against the second push plate (42), and the second push plate (42) is transmission-connected to the first driving member (2).

4. The pipe taper drawing processing device according to claim 3 is characterized in that: It also includes a first guide column (5), which is arranged on the first driving member (2) and extends along a first direction, and the first push plate (41) and the second push plate (42) are both sleeved on the first guide column (5).

5. The pipe taper drawing processing device according to claim 4, characterized in that: A first linear bearing (411) is fixedly arranged on the first push plate (41), and a second linear bearing (421) is fixedly arranged on the second push plate (42); the first linear bearing (411) and the second linear bearing (421) are both sleeved on the first guide column (5).

6. The pipe taper drawing processing device according to claim 3, characterized in that: The first driving member (2) is a hydraulic cylinder, the piston rod of the first driving member (2) is connected to one end of the core rod (3), and the second push plate (42) is fixedly sleeved on the piston rod of the first driving member (2).

7. The pipe taper drawing processing device according to claim 1, characterized in that: The material return mechanism (6) comprises a support frame, a second driving member (65) and a pushing plate (64); the support frame is fixedly arranged on the frame along the first direction; the second driving member (65) is arranged on the support frame; the pushing plate (64) is slidably arranged on the support frame; the second driving member (65) is transmission-connected to the pushing plate (64); the second driving member (65) can drive the pushing plate (64) to move in the opposite direction to the first direction so as to push the shaped material tube (100) and the core rod (3) to pass through and separate from the tapered sleeve die (1).

8. The pipe taper drawing processing device according to claim 7, characterized in that: The support frame comprises a bottom plate (61) and a top plate (62) which are arranged relatively spaced apart, a second guide column (63) is arranged between the bottom plate (61) and the top plate (62), the second guide column (63) extends along a first direction, and the second guide column (63) is respectively connected to the bottom plate (61) and the top plate (62), the push plate (64) is sleeved on the second guide column (63), the taper sleeve die (1) is fixedly penetrated on the bottom plate (61), the bottom plate (61) is fixedly arranged on the frame, and the second driving member (65) is fixedly arranged on the top plate (62).

9. The pipe taper drawing processing device according to claim 8, characterized in that: A limiting block (611) is fixedly provided on one side of the bottom plate (61) facing the top plate (62).

10. The pipe taper drawing processing device according to claim 8, characterized in that: A third linear bearing (641) is fixedly arranged on the pushing plate (64), and the third linear bearing (641) is sleeved on the second guide column (63).

Images